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What’s the big deal with the iphone ‘kill switch’

August 11th, 2008

There has been a lot of coverage over the last week on the ‘discovery’ that Apple may be able to disable an application you installed on your iphone.

Hmm… what would computer users say if Microsoft installs a “kill switch” into Windows Vista? Or its mobile smartphones? Or if Nokia did the same?

itwire

Those ‘kill switches’ are already there in the form of CRL’s for nokia applets and also for vista device drivers.

The apps that are downloaded are digitally signed so Apple already has the means of disabling the application by revoking the signer’s certificate and placing it on a certificate revocation list (CRL).

It seems more logical that the url is (as pointed out by John Gruber) a means to stop errant or malicious applications from accessing your locaion via the core location api.

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Links & Listings

August 12th, 2007

CopySafe

Linkback from the guys at www.copysafe.net, they were one of the first to try out XPISigner and helped squash the early bugs. Much appreciated!

DMOZ

It took about three months but now XPISigner is listed on the
Open Directory Project (DMOZ)
http://www.dmoz.org/Bookmarks/D/development/Firefox/Add-ons/Development/

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Links & Listings

August 12th, 2007

CopySafe

Linkback from the guys at www.copysafe.net, they were one of the first to try out XPISigner and helped squash the early bugs. Much appreciated!

DMOZ

It took about three months but now XPISigner is listed on the
Open Directory Project (DMOZ)
http://www.dmoz.org/Bookmarks/D/development/Firefox/Add-ons/Development/

Uncategorized ,

XPISigner v1.4 released

June 5th, 2007

Download XPISigner v1.4 

Version 1.4

  • You no longer need to run the program from the directory you want to add to your XPI.
  • If a certificate chain was attached to a private key, only the end  certificate would be added to the signer info in the XPI. This prevented Firefox from verifying extensions signed with multi-level certificate chains.

Known Issues

Some pfx files generate an Illegal Key size exception even though the JRE has been updated with the Unlimited Strength Policy files. Importing the pfx into IE and re-exporting it seems to fix this issue.

Uncategorized